* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    box-sizing: border-box;
}

.tutu {
    height: 20px;
    margin-left: 60px;
}

.deng {
    margin-left: 80px;
    margin-right: 80px;
}

.tit {
    text-align: center;
    margin-top: 121px;
}

.tu-a {
    width: 280px;
    height: 56px;
    margin: 0 auto;
    overflow: hidden;
}

.tu-a img {
    display: block;
    float: left;
}

.tu-a p {
    display: block;
    float: left;
    font-size: 30px;
    color: #43C9FB;
}

.tu-tu img {
    width: 100%;
    padding: 40px 80px 40px 80px;
}

.tm {
    width: 100%;
    height: 410px;
    background: url(../images/introduce.jpg);
    background-size: 100%;
    background-repeat: no-repeat;
    overflow: hidden;
}

.tm ul {
    float: right;
}

.tm ul li h2 {
    font-size: 30px;
}

.tm ul li p {
    text-align: right;
    font-size: 14px;
}

.tm ul li span {
    display: inline-block;
    margin-top: 10px;
    font-size: 20px;
}

@media (max-width:600px) {
    .tm {
        background-position: 0px 150px;
    }
    .tm ul li h2 {
        font-size: 20px;
    }
    .tm ul li p {
        font-size: 14px;
        text-align: left;
    }
}

.gn {
    width: 100%;
    background: #F5F5F5;
    overflow: hidden;
    margin-bottom: 50px;
}

.gn h3 {
    display: block;
    margin-top: 30px;
    text-align: center;
    font-weight: bold;
}

.new {
    margin-top: 40px;
}

.biao h1 {
    color: #03A5DD;
    font-weight: bold;
}

.card-body {
    text-align: center;
    margin-bottom: 30px;
}

.card-text {
    height: 160px;
    overflow: hidden;
    display: block;
    margin-top: 50px;
    
}

.biao-a h2 {
    display: block;
    text-align: center;
    font-weight: bold;
    margin-bottom: 50px;
}

.oo {
    margin-bottom: 100px;
}

footer {
    background: white;
    margin-top: 50px;
    background: #F5F5F5;
    padding-top: 20px;
}

footer p {
    font-size: 13px;
}

.tt h6 {
    font-size: 16px;
}

.tt ul li a {
    font-size: 13px;
    color: #333;
}

footer p {
    margin: 0;
}

@media (max-width:600px) {
    .card-body {
        text-align: center;
        margin-bottom: 20px;
    }
}